psds-cpp-2025/02_week/tasks/pretty_array/pretty_array.cpp at 77e2ae8ee6edf93097fbaaeb908daed93cd833ec · psds-cpp/psds-cpp-2025 · GitHub

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#include <stdexcept>
#include <iostream>

void PrintArray(const int* begin, const int* end, int constraint = 0) {
    if (begin == end || begin == nullptr || end == nullptr)
    {
        std::cout << "[]\n";
        return;
    }

    int count = 0;
    std::cout << "[";
    if(begin < end) {
        for(const int* ptr = begin; ptr < end; ++ptr) {
            if((count == constraint) && (constraint != 0)) {
                count = 0;
                std::cout << "...\n ";
            }
            std::cout << *ptr;
            if(ptr != end - 1) { std::cout << ", "; }
            ++count;
        }
        std::cout << "]\n";
    } else {
        ++end;
        for(const int* ptr = begin; ptr >= end; --ptr) {
            if((count == constraint) && (constraint != 0)) {
                count = 0;
                std::cout << "...\n ";
            }
            std::cout << *ptr;
            if(ptr != end) { std::cout << ", "; }
            if(ptr == end) { break; }
            ++count;
        }
        std::cout << "]\n";
    }
}